/*
 * Copyright 2013 - 2020 Outworkers Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.outworkers.phantom.finagle

import com.twitter.util.{Future, Return, Throw}
import org.scalatest.concurrent.{ScalaFutures, Waiters}

trait TwitterFutures extends Waiters with ScalaFutures {

  implicit def twitterFutureToConcept[T](f: Future[T]): FutureConcept[T] = new FutureConcept[T] {
    override def eitherValue: Option[Either[Throwable, T]] = f.poll match {
      case Some(Return(ret)) => Some(Right(ret))
      case Some(Throw(err)) => Some(Left(err))
      case None => None
    }

    override def isExpired: Boolean = false

    override def isCanceled: Boolean = false
  }
}
